The digital twin

Fly a Mission

Fly a mission from anywhere to anywhere in the Solar System. You build the rocket, you design the mission, including surface excursions. You are the mission engineer.

What makes it different

It will tell you no

When a rocket cannot make its mission, the verdict says so, with the shortfall in tons. That is a truth-in-advertising commitment, not a design flourish.

Does not close

MISSION   Earth → Ceres, crewed, 2049 window
Δv REQ    11.482 km/s
Δv AVAIL   9.907 km/s
SHORTFALL  −1.575 km/s  ·  propellant deficit 214.6 t
VERDICT   DOES NOT CLOSE
          example run - fly your own and it returns your numbers

The engine is a digital twin validated against five flown spacecraft, and it is the engine the novels were written to: every trajectory in the Merkabah Cycle was flown here before its chapter was written.

Fly a mission Read the validation report

Tiers

Free 25 flown + canon missions
Subscriber anywhere-to-anywhere, build-your-rocket, surface excursions
Classroom licence guided curriculum

The classroom door

Teachers get their own front door at solarsystemclassroom.com — the same material, labelled for them — which is being built now and is not open yet. Students are free, forever. The theory manual and validation report are never paywalled.